Valve



3 Sheets-Sheen 1.

(No Model.)

. T. 8: J. GALVIN.

VALVE.

Patented Aug. 2l, 1883.

(No'Model.) l 3`Sheetsh-Sheet 2. l

T. & J. GALVIN.

VALVE. l

Patented Aug. 21, 1883.

3 Sheets-Sheet 3.

(No Model.)

T. an J. GALVIN.

VALVE.'

N0. 283,479. Patented Aug. 21, 1883.

Jn ventana- Mw] 9412 12M! Umani)v STATES ATENT' riucn,

THADDEUS JrALVIX AND JOHN GALYIN,.OF DETROIT, MICHIGAN.

VALVE.

SPECIFICATION forming part of Letters Patent No. 283,479, dated August21, 1883 Application filed May 21, 1883. (No model.)

Toy-all whom t may concern:

Be it known that we, THADDEUS GALVIN and JOHN GALvIN, oi' Detroit, inthecounty of resents a longitudinal vertical section of a valve constructedin accordance with thisinvention;v

Y Fig. 2, a vertical transverse section of the same;

. rate seating of the disk or disks, while at the Fig. 3, a perspectiveview, `showing the working parts of the valve, one of the disks beingremoved; Fig. il, ahorizontal longitudinal section through the body ofthe valve; Fig. 5, a sectional view, showing certain details, and inwhich one disk only is employed; Fig. 6, a view of one of the wedgesdetached.

1 rEhe object of this invention is to construct a valve in which thedisk or disks may be firmly forced against the seat or seats provided inthe shell or case without theA sliding or grinding action common to mostconstructions where wedges are employed, and to effect the accusame timeproducing a cheap and simple valve. To this end the invention consistsin constructing the valveas represented in the accompanying drawings, inwhich A represents a shell or case of substantially usual form, providedwith a removable cap, B, a screw-stem, C, for raising and lowering thegates or disks, anda packing-gland or stuffing-box, D, applied to thecap B and encircling the screw-stem to prevent leakage, these partsbeing common to all valves of this class.

E represents a nut or yoke, through which t-he screw-stem G passes, saidstem being provided with a collar, c, which, working between a flange orshoulder, b, in the cap B and the end of a thimble or sleeve, c,prevents longitudinal movement of thc screw stem, from whichconstruction it will be seen that as the stem is rotated the yoke or nutE will be raised or lowered. 'As more plainly sh own in Fig. 8, this nutor yoke is formed with lateral shoulders or lugs d, upon which are hungthe disks F, which forni the gate or cut-off of the valve, said disksbeing furnished with'ears e, having vertical. elongated eyes or openingsf, through which the lugs d pass, the elongation ofthe eyes permitting amovement of the nut or yoke independently of the disks, as presentlyexplained. The nut or yoke Eis further formed with arms q at rightangles to the lugs d, the outer ends of which arms are arranged to workbetween guiding-ribs 71.-, formed in the body of the shell A at eachside of the water-way, the arms g being turned inward to form hooks orhangers i, upon which are hung or suspended wedges G, which are forcedinward toward each other by coming in Contact with beveled or inclinedbearing-surfaces j, formed in the outer shell or case below theguiding-ribs h, the wedges Gt` being formed with perforated ears, asshown in Figs. 3 and 6, to fit upon the hooks or hangers i.

Thewedges G are arranged between the disks F, which disks are formedwith inclines la on their inner faces, against which the wedges bear forthe purpose of forcing .the disks apart. It will thus be seen that withthe parts constructed and arranged as explained, if the screw-stem C beturned in the proper direction to cause the descent of the nut or yokeE, with its disks F and wedges G, the wedges, coming in contact with theinclines j, and being thereby forced inward toward each other againstthe inclined faces k' ofthe disks F, will force said disks apart,causing them to be firmly pressed against the bearing-facesl of thevalve-case.

In order that the yoke may continue its downward movement after thedisks F reach their lowest position, for the purpose of further crowdingthe wedges together, and thus spreading apart the disks F, the eyes inthe ears c oi the disks F are vertically elongated, as above mentioned,and a spring, H, is interposed between the: block and 'lugs or`shoulders an, formed upon the inner faces of the disks F,

' said spring serving to normally press the disks downward in advance ofthe nut or yoke E and in advance ofthe wedges G, but yielding when thedisks come in contact with stops u u at the bottoni of the case orshell, and permitting the yoke or nut E to continue its downwardmovement independently of the disks F. Thus it will be seen that afterthe disks F reach their iinal position (until which time no pressure isapplied to force them apart) the wedging action takes place without anymovement of the disks, except the separation or movement of the disksapart, duel to the spreading or wedging action mentioned. So, too, whenthe screw-stem is turned in the reverse direction for the purpose ofopening the valve, the wedges G iirst rise independently of the disks F,which latter are urged or pressed downward by the spring-H until the wedges have sufficiently withdrawn and swung back from the disks to relievetheir faces of pressure and consequent friction, by which time the lugsd of the nut E will have reached the upper ends ofthe eyes or openingsf, whereupon the disks will begin to rise with the block or nut E.

In some cases, for the purpose of giving a quicker action to the valve,the wedges are made of a gradual taper from end to end, as shown inFigs. 5 and 6, so that after the disks come to rest the downwardmovement of the wedges, as well as the inward movement, shall operate tospread the disks apart.

It is desirable in this class of valves to discharge the water andsediment which may collect in the space behind the gate or between thedisks when two are used, and to accomplish this result there is provideda valve, r, the stem s of which is encircled by a spring, t, one end ofwhich bears against the valve case or shell and the opposite end againsta head, u, on the lower end of the valve-stem s, as shown in Fig. 5. d

rlhe stem works through an opening of larger diameter in the lower sideof the shell or case, which is closed by the valve r whenever thewater-way of the main valve is opened, the valve 1' being raised,however, in the act of closing said water-way, by reasonof one, of thedisks F coming into contact with the end of a pivoted lever or yoke, c,the opposite end of which carries the valve o, as shown.

The spring t serves to close the valve i'.

The details of construction may ofcourse be varied, though'this formwill be found etlicient.

It will be seen that all the parts of the valve are extremely simple andstrong in construc-y tion, and require but little nishing to iit themkfor use, that the use of pivot-pins and the connection with a valvehaving a single disk, a

suitable skeleton frame being provided for the wedges to act against, orinclines or bearing the same as shown in the other figures, except thatone disk is omitted, and the beveled bearing-faces 7c for one side ofthe wedges G to bear against are formed upon arms fr, projecting inwardfrom the sides of the shell. rIhe parts act in 'precisely the samemanner as under the construction before described.

Having thus described the invention, what is claimed isl. In a valvesubstantially such as shown, the combination of a shell or case, asliding gate, a stem for moving said gate, and two swing# ing wedgesarranged to swing laterally toward each other in a plane parallell withthe face of the gate and behind the same, and to crowd the gate to itsseat, substantially as explained.

2. In a valve substantially such as shown, the combination of a shell orcase, a disk or gate, means, substantially such as described, for movingthe gate, wedges tapered both in the direc- 75 5, in which theconstruction is in all respects tion of their length and incross-section, and

arranged lto be moved behind the gate in a direction at right angles tothe movement of the disk or gate, whereby the benefits of their taper inboth directions is utilized for crowding the gate to its seat. d

. 3. lIhe herein-described valve, consisting of shell or case A, arotating 'screw-stem, C, a yoke or nut, E, fitting upon said stem andcarrying a disk, F, and wedges G, arrangedin rear of said disk, adaptedto move in a plane parallel therewith, but at right angles to the.

line of movement ofthe gates, and arranged to bear against the rear faceofthe disk as the yoke or nut E descends, substantially as explained.

4'. The herein-described valve, 4consisting of shell A, cap B, threadedstem C, yoke E, provided with lugs d and arms g, disks F, and wedges G,all arranged and operating substantially as shown and described.

5. In a valve, the combination of a shell or case, A, provided withguides h and inclines j, cap B, stem C, nut or yoke E, provided withlugs d and arms g, disks F, and wedges G, carried by the nut or yoke E,all substantially as shown.

6. In a valve substantially such as shown and described, thecombination, with a shell, A, of a movable block or yoke, E, providedwith lugs d, disks F, having elongated eyes to receive said lugs, andformed withlugs m, wedges G, and spring H, interposed between the blockand the lugs m', substantially as shown, and for the purpose explained.

7 In a valve substantially such as described, the combination of a shellor case and a verticallymoving nut or yoke, E, provided with IOS IIO

lateral studs or lugs cl and arms g, disks F, having perforated ears e,and suspended from the lugs d., and Wedges G, suspended from the arms g,all substantially as shown.

S. In a valve, the Combination of n shell or case, e vertieallymovingyoke, E, provided with arms g, and hooks i', Wedges G, suspended fromsaid hooks, and a disk or disks, F, erranged,substantial1y as shown, toreceive the pressure of the Wedges G.

- 9. In combination with shell or cese A and disks F F, having beveledfaces k, swinging wedges located between thedisks, and liz-wing poseexplained. f

' THADDEUS GALVIN. JOHN GALVTN. XVI' tne's'ses J. EDWIN PLAMoNDoN, GEO.F. BEASLEY.

